Placentomegaly

Placentomegaly is a term applied to an abnormally enlarged placenta. 

Pathology

Associations

It can be associated with number of maternal and fetal disorders which include:

Radiographic features

Antenatal ultrasound

May show an increase in placental thickness and/or placental extent. The increase in size may be homo or heterogeneous dependent on the cause. The maximum thickness considered normal at any stage in pregnancy is often taken at 4 cm.

Differential diagnosis

The differential for an apparent increased in placental size on ultrasound includes:


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Article Information:

rID: 13573
Section: Gamuts
Tag: cases
Synonyms or Alternate Spellings:
  • Placental enlargement
  • Enlarged placenta
  • Large placenta
  • Abnormally large placenta
  • Enlargement of placenta

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